Section 702 allows NSA to eavesdrop on foreigners overseas without a warrant. This is what spy agencies do.

Concerns arise over the incidental collection of communications inside the U.S. or of a U.S. person abroad. Americans don’t lose their constitutional rights at home when they travel to another country.

According to the Director of National Intelligence’s transparency report, there were more than 106,000 targets the NSA collected against last year under 702. Nearly 4,000 were U.S. persons.

Prohibitions prevent NSA from scouring the phone calls, emails, text messages and other communications of U.S. persons that were incidentally collected. However, a loophole allows the FBI to rummage through this data. It’s called a “back door” search.